Conveyer



R. PEALE.

CONVEYER. I APPLICATION FILED MAR 12. 1920-. 1,433,906. Patented Oct.31, 1922.

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CONVEYER.

APPLICATION FILED MAR. 12. 1920.

Patented. Got. 31, 1922.

5 SHEETSSHEET 2-' @QZ-T AWURA/EY RLPEALE.

CO NVEYER. APPLICATION FILED MAR. 12, I920.

1,433,90 Patented. 0ct.31,1922.

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' flTT'U NE/ R. PEALE.

I CONVEYER. APPHCATION FILED MAR, 12 1920.

Patented Oct. 31, 192 2.

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R. PEAL'E. ,4 CONVEYER. APQLI CATIQN FILED MAR, 12, I920.

Patented Oct. 3 1, 192 2.

' Z/E/VTUF WM BY 1 Patented @ct, Ell, 1922.

UNHFED @FATES iaaae Parana caries.

RICHARD PEALE, ST. BENEDICT, PENNSYLVANIA.

convnana.

Application filed March 12, 1920. I Serial No. 365,208.

To all whom it may concern:

Be it known that I, RICHARD PEALE, a citizen of the United States,residingat St. Benedict, in the county of Cambria and State ofPennsylvania, have invented certain new and useful Improvements inConveyers, of which the following is a specification.

other means for conveying the coal through or from the mine.

Objects and advantages of the invention will be further set forth inpart hereinafter,

and in part will be obvious herefrom, or may be learned by practice withthe invention,

the same being realized and attained through the instrumentalities andcombinations pointed out in the appended claims.

The invention consists in the novel parts, constructions, arrangements,combinations and improvements herein shown and described.

The accompanying drawings, referred to herein and constituting a arthereof, illustrate one embodiment of t e invention, and together withthe description, serve to explain the princi les of the invention.

()f, the drawings:

Fig. 1 is a top plan, with parts broken away, and omitting the bottomreach of the endless conveyer, of a machine constructed in accordancewith the principles of the invention;

Fig. 2 is a side elevation, looking at Fig.

1 from its bottom or near side, and further showing somewhatdiagrammatically the machine operating in an undercutting or bottomkerf,with the'overhanging coal in position to drop on the conveyer;

M Fig. 3 is an elevation similar to Fig. 2, and showing somewhatdiagrammatically the machine applied to entry driving or work, where thebottom is shot up or excavated to receive a car track'and the materialis dumped into a car thereon;

Fig. 4 is a greatly enlarged, fragmentary The invention relates todevices and elevation, with the motor and associated parts omitted,corresponding generally to the central and left hand portions of Figs. 2and 3, and showing in detail the device for lifting the conveyer clearof the floor to maintain the conveyer mechanism stationary and tooperate the endless conveyer to convey the coal or other loose material;

Fig. 5 is an isometric perspective detail of the intermediate truckshown in the preceding figures in connection with the conveyer in thekerf or undercutting;

Fig. 6 is an enlarged, fragmentary, vertical sectional detail takensubstantially on line 66 of Fig. 1;

Fig. 7 is an enlarged, fragmentary, vertical sectional detail takensubstantially on line 7-7 of Fig. 1.; l

Fig. 8 is an enlarged, fragmentary detail elevation with parts insection taken substantially on line 8-8 of Fig. 6;

Fig. 9 is an enlarged fragmentary detail in elevation, with parts insection, corresponding to F ig. 8, but with the section takensubstantially on line 9-9 of Fig. 1;

F ig, 10 is a top plan of a somewhat'different form of the invention;wherein the machine is provided with motive power additional to theconveyer;

Fig. 11 is a side elevation looking at Fig. 10 from its bottom ornearest side; r

Fig. 12 is an enlarged fragmentary vertical section taken on the line12-42 of Fig. 10;

Fig. 13 is an enlarged, fragmentary vertical section, taken on line 1313of Fig. 10;

Fig. 14 is an enlarged, fragmentary elevation of the right hand end ofFig. 11 with a part of the gear casing cut away to show the gears andclutches within;

Fig. 15 is an enlarged fragmentary top plan corresponding to Fig. 14,and showing the driving connections with the top casing removed;

Fig. 16 is an enlarged fragmentarytop plan of the upper right corner ofFig. '10, showing the opposite ends of the shafts and rollers from thoseshown in Fig. 15; and

Fig. 17 is an enlarged fragmentary section on line 17-'-17 of Fig. 15.

An object of the invention is the expeditious and economical conveyanceawa from the working face of entries or hea ings, rooms, and otherworking faces of mines, of dislodged coal. With this main object inview, the invention provides a conveyer or conveying means, which inaccord ance with certain features of the invention is auto-motived, andis capacitated to run or travel intoa bottom kerf or undercutting priorto the shooting-down or other dislodgment of the coal and is alsocapacitated for loading and conveying away dislodged c oal lying uponthe mine bottom, that is, which has been shot down or otherwisedislodged without preliminarily placing the conveyer therebeneath. inconnection with the foregoing, there is provided a plurality ofattachable and detachable trucks or buggies adapted in succession to beattached to the conveying machine in order to receive a load or fillingof coal therefrom, then to 1 be detached or pushed away to a place of isat rest.

dischar e another truck or bu comin 9 1' 1 into such receiving relationwith the con-- veyer, the operation of the conveyer being thusmaintained or preserved in continuity. One feature of the inventionconsistsin the endless conveyer belt being capacitated to constitute notonly the conveying means for the coal or. other loose material, but alsothe auto-motive means of the conveyer mechanism.

In accordance with one feature of the invention an endless conveyer isprovide-d adapted to operate by engagement with the floor-or ground as atraveling or conveying means for the entire machine, or to operate as aconveyer when the machine The invention has also in view auto-motivemeans for quickly and easily turning and maneuvering the machine withinsmall compass, and also provides one embodiment of the invention, Figs.1"

means for controlling independently of each other the starting, stoppingand direction of motion of the conveyer and theseparate auto-motivedevices.

Other objects and features of the invention other than those referred toabove will appear "hereinafter without particular mention at this point.It will be understood also that certain features-of the invention areadapted for use independently from other features with which they areherein shown and described as in cooperation or combination, and otherfeatures of the invention which are separately shown herein may be usedtogether in cooperation "01" combination.

Referring now to the accompanying drawlngs, illustrating by way ofexample to 9 illustrate a form of mechanism in' which the endlessconveyer constitutes the auto-motive means or traveling means for themachine. The device or machine in acvcordance with certain features ofthe invention, is capacitated to enter a bottom kerf or under-cutting,so that when the coal is dislodged from the vein, it will fall upon theconveyer and thus be in position to be naeenoe directly carried away.With this in view, the conveyer mechanism is shown with a low, flat andsomewhat extended construction, and of such rugged and strongconstruction as to bear the impact and load of the dislodged and fallingcoal without injury to or impairment of the mechanism. In connectionwith the foregoing, and in accordance with certain features of theinvention, the endless conveyer is adapted to travel the machine intothe undercutting, and cooperating means are provided? for governing or'determining the action of the conveyer so that it may so travel the machine or that it may simply convey away the coal when the machine is atrest.

Referring to the, general construction of the machine, and referring forthe present more particularly to "Figs, 1, 6, 7, 8 and 9, the frames ofthe-conveyer mechanism comprise low, vertically disposed plates 1 and 2,constituting the sides of the frame. The side plates 1 and 2 aresuitably connected and tied together by a sufficient number of crossplates 3 to constitute a strong and rigid structure. The side plates 1and 2 are preferably formed with inwardly extending horizontal lips orflanges 4L at the top and 5 at the bottom thereof, which flanges serveto-back up and support the elements or members 8 of the endlessconveyer, both in the work of traveling the machine and of convtleyingaway the coal or other loose materia The embodied form of endlessconveyer.

comprises a plurality of transversely disposed barsS, lying closely sideby side and preferablyextending quite across the conveyer.- The seriesof side by side bars 8, which constitutes the conveying surface and alsothe auto-motive or traveling surface or element of the machine, extendsin a continuous endless belt over the top and along the bottom and aboutbot-h ends of the machine (Figs. 1, 4, 8 and 9). Suitable projections 7may be formed on the ex terior face of the bars '8 to assist in engagingthe floor in traveling or the loose material in conveying. Suitablefastening or "connecting means between the bars 8 are v;.prov1ded, andas herein embodied a plu-g ve er.

'fhe embodied form comprises additional ill belt engages the floor, orground and is operating as the traveling means for the machine. in suchembodied-form, a plurality of supporting bars 18 are arrangedtransversely to the bars 8 and longitudinally within the machine frame,and preferably parallel with the side plates 1 and 2, the bars 13serving as a support or reinforcee ment for the bars 8 in the upperreach of the endless conveyor. -A similar set of bars 14 are preferablyprovided as a backing or reinforcement for the lower reach of the bars8, and find their chief use and advantage in keeping the bars 8 fromyield ing or springing when the endless conveyor acts as the tractionmeans for the machine. The bars 13 and 1 1 are supported in a suit ablemanner, and as embodied blocks 15 are provided mounted upon shaftsorrods 16, which rods are disposed transversely within the conveyorframe and are supported or journaled at their ends in the side plates 1and 2 of the machine frame. The bars 13 and 14 are attached to thesupporting blocks 15 by suitable means, suchas screws 17.

Other or additional supporting devices are preferably provided for thebars 8 of the endless conveyor, and as embodied comprise rollers 18which are loosely journals-d upon the shafts or rods 18 at variouspoints between the bars 13 and 1 1. The rollers 18 are preferably a.trifle larger in diameter than the distance between the exterior oroperativesurfaces of the bars 13-and 14.

Thus the bars 8 and consequently the entire endless conveyor will runfreely, sup,-

ported on the rotable rollers 18 without contact with the bars 13 and14:, the'bars in such case acting as the reserve reinforcing means whena heavy load or strain is put upon the conveyer. I x

' Suitable driving means are providedfor the conveyer, and as embodiedthe bars 8 have formed on the inner side thereof, at

each end thereof, and if desired at other on the shaft or rod 16 and areidlers. sprocket wheels upon shaft 26 (Figs. 8

- The embodied points intermediately of the ends (this latter not beingshown), a series of recesses 21, which are. adapted to engage with theteeth 23 of a plurality of sprocket wheels 25. Wheels 25 are journaledon the rear'shaft 16- and on a shaft 26 at the forward end of themachine. The sprocket wheels 25 at the left in Fig. 6 and Fig. 8-areloosely journailfid.

and 9) are fixed to the shaft, and are rotated by power applied to'shaft26 to drive the endless conveyor 8.

form of driving'means for shaft 26 comprises a gear wheel 27, fixed onshaft 28,v and meshing with said gear 27 is a gear wheel 28. Meshingwith gear wheel 28 is a gear wheel 29, which is fixed on a shaft 30.Fixed also on shaft 30; is a worm wheel 31. Meshing with worm wheel 31is a worm 32, fixed on a shaft38. .Splined on shaft 83 is a pair ofsleeved-together beveled gears 34: and 35, and theseare shiftablealternatively into mesh with a bevel gear 38, which is fasten theshaftof'ai motor 3?. Suitable means, such as a lever 38, may be employed toshift the beveled gears 34: and. 35 to change the direction of drive andof consequent travel of the endless conveyer 8.

Means are provided, as previously mentioned, for causing the endlessconveyor if; to travel or progress the machine or to operate as anendless conveyerwhen the machine is stationary. means operate to liftthe entire machinefree of the floor to secure the conveyer'action whilethe'machine is stationary, or to permit it to rest upon the door withthe endless conveyer 8 in contact with the floor and acting as theautomotive means when the machine is to travel itself. it will be understood that the endless conveyor 8, if desired,'will also act as aconveyor while the machine is traveling.

In the embodied form of such means, and having. in mind the capacity ofthe machine for entering an undercutting or bottom kerf of amineworking, said means are operable from the exterior end of themachine. Referring to said embodiment in detail, pairs of trunnions l5and 46, are formed on and project outwardly from the frame plates 1 and2, respectively. Cooperating with these trunnionsare a pair oflongitudinally slidable cam bars 47, en ported in brackets or boxes t8and d9, whlch boxes are lined As embodied, said Till down so that theendless conveyer 8 is inengagement with the floor, and by sliding f thecam bars in the opposite direction the illicit machine may belifted'slightly so that'the:

endless conveyor 8 will run clear of the floor.

In the former position, the endless conveyor will travel the machine,and in the latter position it will .actasa conveer with the machinestationary or at rest. s embodied, the cam bar 47 has a recess 50 in itsforward end and an inclined end 51 at its rear end, and an operatingflan e 52 at the forward or outer end thereof. y engaging the. flange 52witha proper tool, such as a crowbar, or by striking it with a sledgeto'the left in the various figures, it will be brought with relation tothe trunnions and to into the position shown in Fig. 4.- This liftsltllll the frame and conveyer clear of the floor, and may be termed theconveying position. If the cam bar 47 be moved to the right in thevarious figures, it Will be brought with respect to the trunnions and 46to the position shown in Fig. 2. The trunnions .will now be inalinement, respectively, with the depression 50 and the inclined part 51of the cam bar, and the machine will be lowered and the endless conveyerrest upon thefloor, in what may be. termed the automotive position, asshown in Fig. 2.

Referring now in detail to the cooper-' ating trucks or buggies, in thedrawings but one such truck or buggy 54 is shown as cooperating at onetime with the conveyer, although it will be clear that two-or moretrucks 54 could be operated side by side. With one such truck receivingthe product of the conveyer, inwardly inclined vertically disposed sideguide or baflie plates 55 and 56 are provided, and cooperating therewithfloor or bottom plates 57 and 58, adapted to receive the coal fromtheconveyer and to direct it into the truck 54. l I Suitable means areprovided whereby the trucks 54 will cooperate with the conveyer,including means for attaching the truck in material receiving positionwith respect to the conveyer and detaching it therefrom. As embodied, anapron 59 is provided hinged to the truck 54, which apron is swingableinto a horizontal position to receive the coal from the conveyer 8 intothe truck 54, and is swingable into vertical position to retain the coalwithin the loaded truck. Suitable hooks 60 and 61 are pivoted to thesides of the truck 54, and they are adapted to catch over edges or lugs62 and 63 upon the structure of the conveying machine. Lugs or supports64 and 65 are provided beneath the apron 59 when in receiving osition.The truck 54 is preferably provided with a tail gate 66 having fasteningmeans 67. The truck 54 is especially adapted to run over the mine bottomWithout a track, and to operate in very thin seams or veins, and forthis purpose is preferably provided with swiveled trucks or rollers 68having a relatively broad tread, Pins 69 are shown for holding the apron59 in vertical position.

In Fig. 3 the machine is diagrammatically illustrated as applied toentry work, one or more of the trucks 54 running between the conveyerand an entry or heading car 70, running on a track 71. This figureillustrates the system in which. the bottom-rock of the entry is blastedto give proper head room, the truck 54 operating between the workingface 72 and the head 73 of the blasted out bottom, thereby permittingthe working face of the entry or heading to advance with 8. eat deal offreedom or independence of t e blastin, out of the bottom, and at thesame time avoiding laborious, expensive and troublesome shovling andreshoveling of the coal between the workin faceof the heading or entryand the head or inner end of the blasted out bottom.

In accordance with certain features of the invention, independentauto-motive meansin addition to or in place of the endless conveyer beltare provided. Thereby the machine may be traveled and the conveyer beltsimultaneously. run each independently of the direction ofthe other.With such independent auto-motive means, the machine is able to turn andmaneuver easily and quickly, and within a very small area or radius, andis especially capacitated for attacking and conveying away piles ofloose material resting upon the floor. That is, the machine is'capacitated to be run into the under-cutting andtoreceive the fallingcoal thereon, or to attack a pile of coal resting on "the fioor orbottom. Means are provided in connection with the foregoing forcontrolling the movement of, and for starting and stopping and reversingthe direction of movement of both the conveyer and the traction orauto-motive means each independently of the others.

Referring now more in detail to the embodied form, the endless conveyer8 is pro vided supported in the machine frame very much as alreadydescribed in connection with the preceding figures of the drawing, andthe details thereof, so far as applicable to this form need not bere-shown or re-described. The endless conveyer may also be of generallysimilar construction although it isonly conventionally shown in Fig. 10.The traction or auto-motive means as embodied constitute two endlesstraction treads 80 and 81 at either side of the endless conveyer 8, theconveyer and each of the treads, respectively, having its own drivingconnections and motion and direction controlling devices, all operableby the attendant of the machine.

In the embodied form thereof (see especially Fig. 15, and also Figs. 10to 17), a motor 82 is suitably mounted on the machine frame, and has abevel gear 83 fixed upon its shaft, Loosely journaled on a shaft 84,mounted in the machine frame, are two bevel gears 85 and 86, which meshwith the gear Wheel 83 on opposite sides thereof, so as to be driventhereby in opposite directions. These serve to drive both the treads andthe conveyer. Means are provided-for driving shaft 84 in eitherdirection, and as embodied a clutch member 87 is splined on the hub 91of a gear wheel 92, which hub is loosely sleeved on the shaft 84. Clutchmember 87 is movable into and out of clutching engagement with the hubof bevel gear 85. An actuating handle or lever 88 is provided therefor(Figs. 10, 15

massages -connection with bevel gear 86 and a gear wheel 96. That is, aclutch member 93 is splined on the hub 95 of a gear wheel 96, the hubbeing sleeved loose on shaft 84.

7 Clutch member 93 is movable into and out of engagement with the hub ofbevel gear 86. An actuating lever 94, like lever 88, is provided forthrowing the clutch member 93 in and out. Thus when clutch member 93 ismoved into engagement with bevel gear 86, gear wheel 96 will be drivenin the opposite direction from that in which gear wheel 92 will bedriven through clutch 87.

The endless conveyor 8 is preferably driven from one end thereof, andmay have a drive and driving connections the same or similar to thosealready shown and de-' scribed, although a plain conveyer and drivingand guiding rollers are shown in Figs. 15 and 16 for the sake ofclearness and simplicity. The driving means, shown here .merely as aroller 98, journaled in the side plates 1 nd 2 of the frame, has itsshaft 99 fitted wi h driving connections which cooperate selectively oralternatively with the gear wheels 92 and 96 already described.

As embodied, a gear wheel 100 is loose .on shaft 99 and meshes with gearwheel 92. A clutch member 101 is splined on shaft 99 and is movable intoand out of engagement with the hub of gear wheel 100. A lever 102operates clutch member 101 (Figs; 10 and 15).

On the opposite side a. gear wheel 103 is' loose on shaft 99 and is inmesh with gear wheel 96. A clutch member 104 is splined on shaft 99 andis movable into and out of engagement with the hub of gear wheel 103. Alever 105 operates clutch member 104 (Figs. 10 and 15).

Withthe foregoing-described mechanism, by alternatively throwing inclutch 87 or 93, the motor will either drive gear wheel 92 in onedirection or gear wheel 96 in the opposite direction. Through thealternative operation of clutches 101 or 104, the conveyer 8 may bedriven in either one direction or the other, as desired, and when bothin, or whether they are both out. This provides means for running theconveyor in either direction, or for keeping it at rest while the motoris driving the traction means.

Means are provided for driving the caterpillar treads 80 and 81 eithertogether, or in opposite directions from one another, or to drive eithertread in either direction while the other is at rest, or to leave bothtreads at rest, and to operate the treads as just described either withor independently of the operation of the endless conveyer 8.

In the embodied form, and referring first to the construction of thetreads themselves as here embodied. the treads 80 and 81 comprise platesor treads proper 110,- running on plates or supports 111, formed in theside frames 1, 2 and 112 of the machine. The plates 110 areconnectedtogether in suitable manner, as by one or more endless cables113, which are fastened to the plates by suitable means such as clampingplates 113, bolted to the inside of the plates 110.

At each end the caterpillar treads run respectively over sprocket wheels114, the teeth 115 of which engage with depressions 116 formed in theinner side of the plates 110. The sprocket wheels are shown in Fig.

'13 formed double at each end of each of the treads. At one end of themachine, the sprocket wheels 114 are preferably or conveniently idlers,and those at the opposite end of the machine are driven. I

In thev embodied form of drive .for the caterpillar tread, having thefunctions and capacities described in a preceding paragraph, a shaft 120is loosely journaled in-a hub 121 of one of the pair of sprocket wheels114 (Fig. 13), the hub 121 serving as a journal for the sprocket wheel114 in the frame 1. A stub shaft 122 is'within and is fastened to thesprocket wheel and has a bearing in the frame plate 112 at the oppositeside.

On the hub 1211 of the sprocket wheel 114 (shown in Fig. 13) is formedone clutch member 123 and the cooperating clutch member. 124 is splinedon shaft 120 to turn 11a fee therewith while being slidable therealonginto and out of engagement with clutch member 121. The opposite end ofshaft 120 (Fig. 16) has the sprocket wheel 114 at the opposite side ofthe machine fixed thereto, the shaft being journaled in the machineframe.

A shaft 128 is journa'led in the machine frame (Figs. 15 and 16) whilebeing longitudinally slidable. On one side, shaft 128 has fixed theretoa gear wheel 130 which, as shaft 128 is moved longitudinally, passesinto and out of mesh with a gear wheel 131, which is fixed on shaft 120.At its opposite end, shaft 128 is journaled in the machine frame and ina. bracket 132. Fixed on shaft 128 is a gear wheel 133 which passes intoand out of engagement with gear wheel 100, as shaft'128 is movedlongitudinally.

The control for clutch 121, 124, as em-liae a messes annular groove 140formed in clutch member 124. Thus as shaft 128, is moved longitudinallyin one direction or the other, clutch 121, 124 is thrown in or out.

Shaft 128 is longitudinally moved .to and fro by suitable means, and forthis purpose, the hub of gear wheel 133 is annularly grooved, and anoperating lever 140 is connected thereto to so move the shaft.

Supported in the machine frame (Fig. 15) is a stub shaft 141, andloosely journaled thereon is a gear wheel 142, the hub thereof,

having an annular groove 143 formed therein, a shifting lever 144 coocrating therewith. A gear wheel 145 is xed on the exterior end of shaft122. By means of lever 144, gear wheel 142 is moved into' and out ofmesh with both gear wheel 103 and gear wheel 145, acting when in mesh asan idler or intermediate therebetween, and making a through orcontinuous drive from gear wheel 96 to gear wheel 145.

Referring now to the operation of the shown and described mechanism:

It will be recalled that gear wheel 100 and gear wheel 103 may bealternatively rotated rotation of the motor.

or driven from the motor 82 by means, respectively, of clutches 87 and93; also that the conveyer drive may optionally remain at rest or bedriven in either direction from the gears 100 and 103, respectively, bymeans of clutches 101 and 104. The four clutches just referred to areoperated by their respective levers'88, 94, 102 and 105.

When gear wheel 133 is thrown into mesh with gear wheel 100 by actuatinglever 140, gear wheel 130 is also thrown into mesh with gear wheel 131.

The manner of o eration of the foregoing is substantially as Follows:

To travel the machine forward:

When gear wheel 142 is in mesh with gear wheels 103 and 145, and clutch124 is in mesh, the machine willtravel forwardly or backwardly dependenton the direction of That is, with the connections as described, byrunning the motor in one direction or the other, the ma chine may be runeither forward or backward as desired. If it is desired to run theconveyer when the machine is traveling forward, as in attacking a pileof coal resting on the mine bottom, this may be done by throwing inclutch 101 or clutch 104, depending-on the direction of rotation of themotor.

To turn the machine by operating the caterpillar treads in oppositedirections When gear wheels 133 and 130 are in mesh and clutch 124 isopen and at the same time gear 142 is in mesh, the caterpillar treadswill travel in opposite directions and turn the machine. By reversingthe motor the treads may be operated in the opposite direction.

To drive one caterpillar tread while the other is at rest Gear wheel 142is moved out-of mesh, and gear wheel 130 is moved into mesh, thusthrowing clutch 124 out of engagement and clutch 87 is thrown in. Tread81 will then be driven in either direction, dependent on the directionof rotation of the motor, while tread 80 is at rest. If clutch 87 bethrown out, and gear 142 is moved into mesh with gears 145 and 103, andclutch 93 is thrown in, tread 80 will be driven in either direction,dependent on the direction of rotation of the motor, while tread 81 isat rest.

Various other combinations including changes in the direction of driveor state of rest or motion of the conveyor and of the treads arepossible and available, but need not be described in detail.

The invention is not limited to the precise forms of construction hereinshown and described, but-changes may be made therein without departingfrom the principles of the invention.

What I claim is 1. A coal handling machine including in combination aframe, a motor carried thereby, and an endless belt adapted to travelthe machine or to convey the coal when the machine is at rest.

2. A coal handling machine including in combination a frame adapted toenter an ordinary undercut kerf, a motorcarried thereby, and an endlessbelt adapted to travel the machine into the kerf or to convey the coalwhen the machine is at rest.

3. A coal handling machine including in combination a frame adapted toenter an ordinary undercut kerf, a motorcarried by a portion of theframe exterior to the kerf, and an endless belt adapted to travel themachine'into the kerf or to convey the coal when the machine is at rest.

4. A coal handling machine including in combination a frame, a motorcarried thereby, and an endless belt adapted to act a1- ternatively as atraveling means for the ma-' combination a horizontal frame, an enless'lBO belt arranged about the frame on the top and bottom sidesthereof, means for driv-- ing the belt, and means for lowering andraising the belt into and out of contact with the floor to cause thebelt alternatively to travel the machine or to act as a conveyer beltwhen the machine is at rest and amotor carried by the frame for drivingthe belt.

7. A coal'handling machine including in combination a horizontal frame,an endless belt arranged about the frame on the top and-bottom sidesthereof, means for driving the belt, and means for lowering and raisingthe frame to move the belt into and out of contact with the floor tocause the belt alternatively to travel the machine or to act as aconveyer belt when the machine is at rest.

8. A coal handling machine including in combination a frame, a motorcarried thereby, and an endless belt adapted to travel the machine or toconvey the coal when the ma-' combination a horizontalframe,-an endlessbelt arranged about the frame on the top and bottom sides thereof, meansfor driving the belt, and means for lowering and raising the belt intoand out of contact with the floor to cause the belt alternatively totravel the machine or to act as a conveyer belt when the machine is atrest and material and floor engaging projections upon the belt.

11. A coal handling machine including in combination a relatively flat,horizontally disposed frame, an endless conveyer running over the bottomand top of said frame, and means within the conveyer and within theframe for driving the conveyer, comprising sprocket wheels engaging theconveyer on its inside.

12. A coal handling machine including in.

combination a relatively flat, horizontally disposed'frame, an'endlessconveyer running over the bottom and top of said frame, and

means within the conveyer and within the frame for driving the conveyer,comprising sprocket wheels engaging the conveyer on its inside and amotor carried by the frame and driving said conveyer through thesprocket wheels.

13. A coal handling machine including in combination a relatively flat,horizontally disposed frame, an endless conveyer running,

over'the bottom and top of said frame, said is at rest and supportingmeans within the frame and supporting the upper reach of the conveyer toreenforce it for its load.

15. A coal handling machine including in 'combinationa frame, a motorcarried thereby, an endless belt adapted to act alternatively as atraveling means for the machine or as a conveyer for loose material whenthe machine is at rest and supporting means within the frame andsupporting the upper geagh of the conveyer to reenforce it for its 16. Acoal handling machine including in combination a horizontal frame, anendless belt arranged about the frame on the top and bottom sidesthereof, means for driving the belt, means for lowering and raising thebelt into and out of contact with the floor. to cause the beltalternatively to travel the machine or to act as a conveyer when themachine is at rest and supporting means within the frame and supportingtheupper' reach of the conveyer to reenforce it for its load.

17. A coal handling machine including in combination a relatively flat,horizontally disposed frame, an endless conveyer running over the bottomand top of said frame, and means within the conveyer and within theframe for driving the conveyer, comprising sprocket wheels engaging theconveyer on its inside and supporting means within the frame andsupporting the upper reach of the conveyer to reenforce it for its load.

18. A coal handling machine including in combination a relatively fiat,horizontally disposed frame, an endless conveyer running over the bottomand top of said frame, said conveyer comprising a pluralityv oftransversely disposed, joined together elements, means within the frameand conveyer for driving the conveyer, comprising sprocket wheels havingteeth engaging said elements, and supporting means within the frame andsupporting the upper reach of the conveyer to reenforce it for its load.

19. A coal handling machine including in combination a frame, a motorcarried thereby, and an endless belt adapted to travel the machine or toconvey the coal when the machine is at rest and a plurality ofsupporting rollers supporting the u per reach of the conveyer toreenforce it or its load.

20. A coal handling machine. including in combination a frame, a motorcarried thereby, an endless belt adapted to act alternatively as atraveling means for the machine or as a conveyer for loose material whenthe machine is at rest and a plurality of supporting rollers supportingthe upper reach of the conveyer to reenforce it for its load.

21. A coal handling machine including in combination a relatively fiat,horizontally disposed frame, an endless conveyer running over the bottomand top of said frame, means within the conveyer and within the framefor driving the conveyer, comprising sprocket wheels engaging theconveyer on its inside and a plurality of supporting rollers supportingthe upper reach of the conveyer to reenforce it for its load.

22. A coal handling machine including in combination a relatively flat,horizontally disposed frame, an endless conveyer running over the bottomand top of said frame, said conveyer comprising a plurality oftransversely disposed, joined together bars, and

means within the frame and conveyer for driving the conveyer,'comprisingsprocket wheels having teeth engaging saidbars.

23. A coal handling machine including in combination .a relatively flat,horizontally disposed frame, an endless conveyer running over the bottomand top of said frame, said conveyer comprising a plurality of transversely disposed, joined together elements,

means within the frameand conveyer for driving the conveyer, comprisingsprocket wheels having teeth engaging said elements and supporting meansfor the upper reach of said elements located within the frame.

24. A coal handling machine including in combination a relatively flat,horizontally disposed frame, an endless conveyer running over the bottomand top of said frame,

said conveyor comprising a plurality of transversely disposed, joinedtogether bars, means within the frame and conveyer for driving theconveyer, comprising sprocket wheels having teeth engaging said bars andsupporting means for the upper reach of said bars located within theframe.

25. A coal handling machine including in combination a relativelyfiat,horizontally disposed frame, an endless conveyer running over the bottomand top of said frame, said conveyer comprising a plurality oftransversely disposed, joined together elements, means within the frameand conveyer for driving the conveyer, comprising sprocket wheels havingteeth engaging said elements and supporting means comprising supportingrollers forthe upper reach of said elements located within the frame.

26. A coal handling machine including in combination a relatively flat,horizontally disposed frame, an endless conveyer running over the bottomand top 'of said frame, said conveyer comprising a plurality oftransversely disposed, joined together bars, means within the frame andconveyer for driving the conveyer, comprising sprocket wheels havingteeth engaging said bars and supporting means comprising supportingrollers for the upper reach of said bars located within the frame. 27. Acoal handling machine including in combination arelatively flat,horizontally disposed frame, an endless conveyer runnin over the bottomand top of said frame, sai conveyer comprising a plurality transverselydisposed, joined together elements,-means within the frame and conveyerfor driving the conveyer, comprising sprocket wheels having teethengaging said elements and supporting means comprising longitudinallydisposed elements for the upper reach of said elements located withinthe frame.

28. A coal handling machine including in combinationv a relatively flat,horizontally disposed frame, an endless conveyer running over the bottomand top of said frame, said conveyer com rising a plurality oftransversel dispose joined together bars, means within the frame andconveyer reach of said bars located within the frame.

29. A coal handling machine including in combination a. frame, a motorcarried thereby, an endless belt adapted to travel the machine or toconvey the coal when the machine is at rest and a car at the rear of theconveyer and receiving the coal therefrom. a l

30. A coal handling machine including in combination a frame, a motorcarried thereby, an endless belt adapted to travel the machine or toconvey the, coal when the machine is at rest and a car at the rear ofthe conveyer attachable .to and detachable from the frame and receivingthe coal therefrom.

31.- A coal handling. machine including in combination a frame, a motorcarried thereby, an endless belt adapted to act alternatively as atraveling means for the machine or as a conveyer for loose material whenthe machine is at rest and a car at the rear of the conveyer andreceiving the coal therefrom.

32. A coal handling machine including in combination a frame, a motorcarried thereby, an endless belt adapted to act alternatively as atraveling means for the machine or as a conveyer for loose materialtop'and bottom sides thereof, means for driving the belt, means forlowering and raising the belt into and out of contact with the floor tocause the belt alternatively to travel the machine or to act as aconveyer belt when the machine is at rest and a car at the rear of theconveyer and receiving the coal therefrom.

34:. A coal handling machine including in combination a frame, a motorcarried thereby, an endless belt adapted to travel the machine or toconvey the coal when the machine is at rest and a car at the'rear of theconveyer and receiving the coal therefrom and means for directing thecoal from the conveyer into the car. I

35. A coal handling machine including in combination a frame adapted toenter an ordinary undercut kerf, a motor carried thereby, an endlessbelt adapted to travel the machine into the kerf or to convey the coalwhen the machine is at rest and means operable from the outside of thekerf for causing the conveyer to operate in either way described.

36. A coal handling machine including in combination a frame, a motorcarried thereby, an endless belt adapted to travel the machine or toconvey the goal when the machine is at rest and means for causing theconveyer to operate in either way described.

37. A coal handling machine including in combination a horizontal frame,an endless belt arranged about the frame on the top and bottom sidesthereof, means for driving the belt, and means operable from one end ofthe frame for lowering and raising the belt into and out of contact withthe floor to cause the belt alternatively to travel the machine or toact as a conveyer belt when the machine is at rest. v

38. A coal handling machine including in combination a frame, a motorcarried thereby, an endless belt adapted to travel the machine or toconvey the coal when the machine is at rest, a car at the rear of theconveyer and receiving the coal therefrom and means for discharging thematerial from the other end of the car.

39. A coal handling machine including in combination a frame, a motorcarried thereby, an endless belt adapted to travel the machine or toconvey the coal when the machine is at rest and a car at the rear of theconveyer and receiving the coal therefrom and means for directing thecoal from the conveyer into the car and means for discharging thematerial from the other end of the car. a

40. A coal handling machine including in combination a frame, a motorcarried thereby, an endless belt adapted to act alternatively' as atraveling means for the machine or as-a conveyer for loose material whenthe machine is at rest and a car at the rear of the conveyer andreceiving the coal therefrom and means for discharging the material fromthe other end of the car.

41. A coal handling machine including in combination a horizontal frame,an endless belt arranged about the frame on the top and bottom sidesthereof, means for driving the belt, means for lowering and raising thebelt into and out of contact with the floor to cause the beltalternatively to travel the machine or to act as a conveyer belt whenthe machine is at rest and a car at the rear of the conveyer andreceiving the coal therefrom and means for discharging the. materialfrom the other end of the car.

l2. A coal handling machine including in combination a relativel flat,horizontally disposed frame, an en less conveyer running over the bottomand top of said frame, said conveyer cdmprising a plurality oftransversely disposed, joined together elements, and means within theframe and conveyer for driving the conveyer, comprising sprocket wheelshaving teeth engaging said elements, and a plurality of endless cablesjoining said conveyer elements together.

43. A coal handling machine including in combination a relatively flat,horizontally disposed frame, an endless conveyer running, over thebottom and top of said frame. said conveyer comprising a plurality" oftransversely disposed, joined together bars, means within the frame andconveyer for driving the conveyer, comprising sprocket wheels havingteeth engaging said bars, and a plurality of endless cables joining saidbars together. I

4A. A coal handling machine including in combination a relatlvely 'tlat,horizontally disposed frame, an endless conveyer running over the bottomand top of said frame, said conveyer comprising a plurality oftransversely disposed, joined together elements, means within the frameand conveyer for driving the conveyer, comprising sprocket wheels havingteeth engaging said elements, supporting means for the upper reach ofsaid elements located within the frame and a plurality of endless cablesjoining said elements together. I

In testimony whereof, I have signed my name to this specification.

RICHARD PEALE.

